.header {
  position: sticky;
  top: 0;
  z-index: 8;
  height: 48px;
  padding: 0 16px;
  color: #333;
  font-weight: bold;
  font-size: 16px;
  line-height: 48px;
  background-color: #fff;
  box-shadow: 0 2px 4px 0 #f0f2f5;
  user-select: none;
}

.children {
  margin: 16px 16px 0;
}
